Planet commonly known as the Hork-Bajir Homeworld. The Andalite desgination for this planet is Sector Five, RG-Two-One-Five-Seven-Eight-Four. The "RG" meant Red Giant, for that was the kind of sun it was orbiting. The dash-four meant this was the fourth planet from the sun.
The Hork-Bajir homeworld is covered with thick forests. It has deep chasms filled with denser atmosphere where the reclusive Arn live. The atmosphere in these regions is so dense that Shredders cannot be used.